System.ArgumentException

[nibsy]

I have an application which analyses website usage logs.

The program reads in a file to analyse.

I received the following error message when running the application:

System.ArgumentException: Found a high surrogate char without a following low surrogate at index: 546. This input may not be in this encoding, or may not contain valid unicode (UTF-16) characters.

Inspecting the website logs manually it seems there is some unexpected corrupt data within the file.

I was wondering if there was a way of catching this error to stop the program crashing?

Any help will be gratefully received.

 

[dynamic_sysop]

        Try
            Shell("", AppWinStyle.NormalFocus, True)
            '// your code would go here
            '/// i made this to purposely throw an error
            '/// basically it tries to open something that doesnt exsist
        Catch
            MsgBox("error: " & Err.Description)
        End Try

hope this helps

 

[nibsy]

Thanks for the help!

Is there a way of catching this specific error?

 

[PlausiblyDamp]

to steal somebody else's code

Try
            Shell("", AppWinStyle.NormalFocus, True)
            '// your code would go here
            '/// i made this to purposely throw an error
            '/// basically it tries to open something that doesnt exsist
Catch ex as System.ArgumentException       'Use this here
            MsgBox("error: " & ex.Message)      'Also look at ex.ParamName
        End Try

this also allows you to catch multiple different errors

try

'Iffy code here

catch ex as System.ArgumentException
 'handle error here
catch ex as System.InvalidCastException
'handle type mismatch

end try

hope that helps

 

[Heiko]

Try
...
Catch e1 as System.ArgumentException
...
Catch e as Exception
...
Finally
...
End Try